View Compilation Error

0_0_33161216_2840.cpp:24:26: error: 'Poin' does not name a type
  Point operator - (const Poin
                          ^
0_0_33161216_2840.cpp:24:26: error: expected ',' or '...' at end of input
0_0_33161216_2840.cpp:24:26: error: expected ')' at end of input
0_0_33161216_2840.cpp:24:26: error: expected ';' at end of member declaration
0_0_33161216_2840.cpp:24:26: error: expected '}' at end of input
0_0_33161216_2840.cpp:23:42: error: expected unqualified-id at end of input
  Point(double a=0,double b=0):x(a),y(b) {}
                                          ^